If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Jellyfish as a species are actually older than dinosaurs and sharks.
383
A giraffe's kick is so powerful that it can decapitate a lion.
216
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3